WO2023210860A1 - Internet access management service server capable of providing internet access management service based on terminal grouping and operation method thereof - Google Patents

Abstract

An Internet access management service server and an operation method thereof are disclosed. The present invention presents an Internet access management service server capable of providing an Internet access management service based on terminal grouping and an operation method thereof, and can thereby support an administrator to manage Internet access more conveniently and efficiently for grouped terminals.

Description

Internet access management service server capable of providing Internet access management service based on terminal grouping and its operating method

The present invention relates to an Internet access management service server capable of providing an Internet access management service based on terminal grouping and a method of operating the same.

Recently, as individual Internet usage time increases, the need for Internet access management services is also increasing.

Here, the Internet access management service refers to a service that prevents terminals subject to management from accessing the URL address of a site subject to access blocking or from accessing the Internet during Internet access blocking times.

This Internet access management service requires the administrator to set scheduling rules appropriately in that it must prevent managed terminals from accessing the URL address of a site subject to access blocking or from accessing the Internet during Internet access blocking times. This is one of the most important things to set.

In this regard, after checking the identification information for the terminals currently connected to the router equipment and performing terminal grouping, the administrator terminal is requested to set a scheduling rule for Internet access management of the grouped terminals, and the administrator terminal When information about a specific schedule rule is received from the router, if a command can be sent to the router device requesting to set information about the schedule rule, the administrator can more conveniently and efficiently manage Internet access for grouped terminals. You will be able to perform.

Therefore, research is needed on Internet access management service system technology that can provide Internet access management services based on terminal grouping.

The present invention proposes an Internet access management service server that can provide an Internet access management service based on terminal grouping and an operating method thereof, allowing administrators to perform Internet access management more conveniently and efficiently for grouped terminals. We would like to support you.

According to an embodiment of the present invention, an Internet access management service server capable of providing an Internet access management service based on terminal grouping receives a list of terminals for performing Internet access management settings of a pre-designated router device from an administrator terminal. When an information transmission request command is received, a terminal unique identification information request unit requests transmission of terminal unique identification information for terminals currently connected to the router equipment to the router equipment, requesting transmission of the terminal unique identification information In response, when the terminal unique identification information of the plurality of first terminals is received from the router equipment, a terminal unique identification information transmission unit that transmits the terminal unique identification information of the plurality of first terminals to the manager terminal, After the terminal unique identification information of the plurality of first terminals is transmitted to the manager terminal, terminal unique identification information of at least one management target terminal selected from among the plurality of first terminals is received from the manager terminal, and management is performed. A profile information generator that generates first profile information consisting of terminal unique identification information of the at least one management target terminal when a command to request the creation of a profile for group designation is received; when the first profile information is generated, , a scheduling rule setting request unit that requests setting of a scheduling rule for Internet access management to the administrator terminal, and first schedule rule information from the administrator terminal - the first schedule rule information includes at least one object subject to access blocking. When - is received, the first profile information and the first schedule rule information are transmitted to the router device, and the first profile is information consisting of the URL (Uniform Resource Locator) address of the site and Internet access blocking time information. Scheduling that prevents the at least one management target terminal included in the information from accessing the URL address of the at least one site according to the first schedule rule information and at the same time prevents the terminal from accessing the Internet during the Internet access blocking time. and a setting request command transmission unit that transmits a scheduling rule setting request command requesting to set a rule.

In addition, according to an embodiment of the present invention, a method of operating an Internet access management service server capable of providing an Internet access management service based on terminal grouping is to perform Internet access management settings of a pre-designated router device from an administrator terminal. When a command to request transmission of terminal list information is received, requesting, from the router equipment, transmission of unique terminal identification information for terminals currently connected to the router equipment, in response to the request for transmission of the terminal unique identification information , when the terminal unique identification information of the plurality of first terminals is received from the router equipment, transmitting the terminal unique identification information of the plurality of first terminals to the manager terminal, and transmitting the terminal unique identification information of the plurality of first terminals to the manager terminal. After the terminal unique identification information of the terminals is transmitted, the terminal unique identification information of at least one management target terminal selected from among the plurality of first terminals is received from the manager terminal, and a request for creating a profile for designating a management group is made. When a command is received, generating first profile information consisting of terminal unique identification information of the at least one management target terminal, when the first profile information is generated, generating a scheduling rule for Internet access management to the manager terminal. In the step of requesting settings and from the administrator terminal, first schedule rule information - the first schedule rule information is information consisting of the URL address of at least one site subject to access blocking and Internet access blocking time information - is received. Then, while transmitting the first profile information and the first schedule rule information to the router equipment, the at least one management target terminal included in the first profile information is configured to, according to the first schedule rule information, It includes transmitting a scheduling rule setting request command requesting to set a scheduling rule that prevents access to the URL address of at least one site and simultaneously prevents access to the Internet during Internet access blackout times.

The present invention proposes an Internet access management service server that can provide an Internet access management service based on terminal grouping and an operating method thereof, allowing administrators to perform Internet access management more conveniently and efficiently for grouped terminals. We can support you to do so.

Figure 1 is a diagram illustrating the structure of an Internet access management service server capable of providing an Internet access management service based on terminal grouping according to an embodiment of the present invention.

Figure 2 is a flowchart showing the operation method of an Internet access management service server capable of providing an Internet access management service based on terminal grouping according to an embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings. This description is not intended to limit the present invention to specific embodiments, but should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. In describing each drawing, similar reference numerals are used for similar components, and unless otherwise defined, all terms used in this specification, including technical or scientific terms, are within the scope of common knowledge in the technical field to which the present invention pertains. It has the same meaning as generally understood by those who have it.

In this document, when a part "includes" a certain component, this means that it may further include other components rather than excluding other components, unless specifically stated to the contrary. Additionally, in various embodiments of the present invention, each component, functional block, or means may be composed of one or more subcomponents, and the electrical, electronic, and mechanical functions performed by each component may be electronic. It may be implemented with various known elements or mechanical elements such as circuits, integrated circuits, and ASICs (Application Specific Integrated Circuits), and may be implemented separately or by integrating two or more into one.

Meanwhile, the blocks in the attached block diagram or the steps in the flow chart are computer program instructions that are mounted on the processor or memory of equipment capable of data processing, such as general-purpose computers, special-purpose computers, portable laptop computers, and network computers, and perform designated functions. It can be interpreted to mean. Because these computer program instructions can be stored in a memory provided in a computer device or in a computer-readable memory, the functions described in the blocks of a block diagram or the steps of a flow diagram can be produced as a manufactured product containing instruction means to perform them. It could be. In addition, each block or each step may represent a module, segment, or portion of code that includes one or more executable instructions for executing specified logical function(s). Additionally, it should be noted that in some alternative embodiments, it is possible for functions mentioned in blocks or steps to be executed in a different order. For example, two blocks or steps shown in succession may be performed substantially simultaneously or in reverse order, and in some cases, some blocks or steps may be omitted.

Figure 1 is a diagram illustrating the structure of an Internet access management service server capable of providing an Internet access management service based on terminal grouping according to an embodiment of the present invention.

Referring to FIG. 1, the Internet access management service server 110 according to the present invention includes a terminal unique identification information request unit 111, a terminal unique identification information transmitter 112, a profile information generator 113, and a scheduling rule setting. It includes a request unit 114 and a setting request command transmission unit 115.

When the terminal unique identification information request unit 111 receives a command to request transmission of terminal list information for performing Internet access management settings of a pre-designated router device 100 from the administrator terminal 140, the router device ( 100), requesting transmission of terminal unique identification information for terminals currently connected to the router device 100.

Here, the terminal unique identification information includes MAC address (Media Access Control Address), IP address (Internet Protocol Address), if the terminal is a mobile terminal, International Mobile Equipment Identity (International Mobile Equipment Identity), or phone number assigned to the terminal, etc. means.

When the terminal unique identification information of a plurality of first terminals is received from the router equipment 100 in response to a request for transmission of the terminal unique identification information, the terminal unique identification information transmission unit 112 sends to the manager terminal 140, Transmits unique terminal identification information of the plurality of first terminals.

After the terminal unique identification information of the plurality of first terminals is transmitted to the manager terminal 140, the profile information generator 113 generates at least one selected from the plurality of first terminals from the manager terminal 140. When the terminal unique identification information of the management target terminal is received and a request command for creating a profile for designating a management group is received, first profile information consisting of the terminal unique identification information of the at least one management target terminal is generated. .

When the first profile information is created, the scheduling rule setting request unit 114 requests the administrator terminal 140 to set a scheduling rule for Internet access management.

The setting request command transmission unit 115 receives first schedule rule information from the administrator terminal 140 (the first schedule rule information includes the URL (Uniform Resource Locator) address of at least one site subject to access blocking and Internet access When information consisting of blocking time information) is received, the first profile information and the first schedule rule information are transmitted to the router device 100, and the at least one management target included in the first profile information A scheduling rule setting request command that requests the terminal to set a scheduling rule that prevents the terminal from accessing the URL address of the at least one site according to the first scheduling rule information and simultaneously prevents the terminal from accessing the Internet during Internet access blocking times. transmit.

Hereinafter, the operations of the terminal unique identification information request unit 111, the terminal unique identification information transmitter 112, the profile information generator 113, the scheduling rule setting request unit 114, and the setting request command transmitter 115. This will be explained in detail using an example.

First, assume that a command to request transmission of terminal list information for performing Internet access management settings of a pre-designated router device 100 is received from the administrator terminal 140 to the Internet access management service server 110.

Then, the terminal unique identification information request unit 111 may request the router device 100 to transmit terminal unique identification information for terminals currently connected to the router device 100.

At this time, in response to the request to transmit the terminal unique identification information, the router equipment 100 sends terminal unique identification information of the plurality of first terminals 'Terminal 1, Terminal 2, Terminal 3, Terminal 4, and Terminal 5', '1A:00:3F:F1:4C:C5, 40:8D:5C:00:72:B5, 85:D1:EE:2A:00:16, CF:76:11:2D:09:00, EA When a MAC address such as ':05:31:A7:C2:99' is received, the terminal unique identification information transmission unit 112 sends 'terminal 1, terminal 2, terminal 3, and terminal 4' to the manager terminal 140. , Terminal 5's unique terminal identification information '1A:00:3F:F1:4C:C5, 40:8D:5C:00:72:B5, 85:D1:EE:2A:00:16, CF:76 :11:2D:09:00, EA:05:31:A7:C2:99' can be transmitted.

In this way, after the terminal unique identification information of 'terminal 1, terminal 2, terminal 3, terminal 4, and terminal 5' is transmitted to the manager terminal 140 through the terminal unique identification information transmission unit 112, the terminal ' Let us assume that among ‘Terminal 1, Terminal 2, Terminal 3, Terminal 4, and Terminal 5’, ‘Terminal 1, Terminal 3, and Terminal 5’ are selected as at least one terminal to be managed.

In this situation, the terminal unique identification information '1A:00:3F:F1:4C:C5' of the selected 'Terminal 1, Terminal 3, and Terminal 5' is sent from the administrator terminal 140 to the Internet access management service server 110. , 85:D1:EE:2A:00:16, EA:05:31:A7:C2:99' is received, and when a command to request the creation of a profile for specifying a management group is received, the profile information creation unit 113 is the unique terminal identification information of 'Terminal 1, Terminal 3, and Terminal 5', '1A:00:3F:F1:4C:C5, 85:D1:EE:2A:00:16, EA:05:31:A7: ‘Profile information 1’ consisting of ‘C2:99’ can be created.

In this way, when 'profile information 1' is generated by the profile information creation unit 113, the scheduling rule setting request unit 114 may request the administrator terminal 140 to set a scheduling rule for Internet access management.

At this time, in response to the request for setting the scheduling rule, the first schedule rule information is sent from the administrator terminal 140 to 'URL address 1, URL address 2', which is the URL address of 'Site 1, Site 2' that is subject to access blocking. When it is said that 'Schedule rule information 1' consisting of 'Daily, 10 PM - 7 AM', which is Internet access blocking time information, is received, the setting request command transmission unit 115 is the router device 100, and sends 'profile While transmitting 'Information 1' and 'Schedule Rule Information 1', 'Terminal 1, Terminal 3, and Terminal 5' included in 'Profile Information 1' are connected to 'Site 1, Site 2' according to 'Schedule Rule Information 1'. In addition to preventing access to the URL addresses 'URL address 1, URL address 2', set a scheduling rule to prevent access to the Internet during Internet access blocking times such as 'Daily, 10 PM - 7 AM'. A scheduling rule setting request command can be transmitted.

At this time, the router device 100 receives 'profile information 1' and 'schedule rule information 1' from the Internet access management service server 110, and when the scheduling rule setting request command is received, the information is included in 'profile information 1'. At the same time, it prevents 'Terminal 1, Terminal 3, and Terminal 5' from accessing 'URL Address 1, URL Address 2', which are the URL addresses of 'Site 1 and Site 2', according to 'Schedule Rule Information 1'. You can set scheduling rules to prevent access to the Internet during Internet access blocking times, such as 'every day, 10 p.m. to 7 a.m.'

In this way, after the scheduling rule is set by the router device 100, 'Terminal 1, Terminal 3, and Terminal 5' send 'URL address 1,' which is the URL address of 'Site 1, Site 2' through the router device 100. When attempting to access 'URL address 2' or attempting to access the Internet during Internet access blocking hours such as 'every day, 10 PM to 7 AM', the router device 100 connects 'Terminal 1, Terminal 3, and Terminal 5'. You can perform access blocking control for '.

According to one embodiment of the present invention, when the configuration request command transmission unit 115 transmits the first profile information and the first schedule rule information to the router device 100, the first profile information and the first schedule rule information are transmitted to the router device 100. In order to prevent the schedule rule information from being exposed to others, the first profile information and the first schedule rule information may be encrypted and transmitted to the router device 100.

In this regard, according to one embodiment of the present invention, the setting request command transmission unit 115 is a specific configuration for encrypting the first profile information and the first schedule rule information and transmitting them to the router device 100, Equipment identification number storage unit 116, first hash function storage unit 117, serial number table maintenance unit 118, first encryption event generation unit 119, serial number extraction unit 120, operation code generation unit (121), it may include a first hash value generation unit 122, a first encryption unit 123, and a first transmission processing unit 124.

The device identification number storage unit 116 contains a device identification number of t (t is a natural number of 2 or more) digits pre-issued for the router device 100 (the device identification number corresponding to the router device 100 is the router device ( 100) is also pre-stored).

For example, if t is '4' and the 4-digit equipment identification number pre-issued for the router device 100 is '1230', the device identification number storage unit 116 contains a number corresponding to the router device 100. The equipment identification number '1230' may be stored.

The first hash function storage unit 117 stores a preset first hash function that is pre-shared with the router device 100.

The serial number table maintenance unit 118 stores and maintains a serial number table in which different t-digit serial numbers corresponding to each of a plurality of preset time zones, which are pre-shared with the router device 100, are recorded.

For example, as in the above-described example, when t is '4', the serial number table maintenance unit 118 may store and maintain a serial number table as shown in Table 1 below.

multiple time zones	4-digit serial number
Time Zone 1 (00:00 AM to 4:00 AM)	6401
Time Zone 2 (4:00 AM - 8:00 AM)	3286
Time Zone 3 (8:00 AM - 12:00 PM)	1752
Time Zone 4 (12:00 PM - 4:00 PM)	5429
...	...

When the first schedule rule information is received from the manager terminal 140, the first encryption event generator 119 encrypts and transmits the first profile information and the first schedule rule information to the router device 100. Generates a first encryption event to do this.

When the first encryption event occurs, the serial number extractor 120 extracts a first serial number corresponding to the first time zone at which the first encryption event occurred from the serial number table.

When the first serial number is extracted, the operation code generator 121 performs a modulo-2 operation on each of the t numbers constituting the device identification number corresponding to the router device 100. A t-bit first operation code is generated by configuring the result value as a bit string, and the result value when modulo-2 operation is performed on each of the t numbers constituting the first serial number is A second operation code of t bits is generated by configuring it as a bit string.

Here, the modulo-2 operation refers to an operation that performs division by dividing the dividend by 2 and calculates the remainder.

The first hash value generator 122 generates a t-bit seed code by performing an exclusive OR (XOR) operation between the first operation code and the second operation code, and then generates a seed code of t bits. It is applied as input to the first hash function to generate the first hash value.

When the first hash value is generated, the first encryption unit 123 generates a first data set consisting of the first profile information and the first schedule rule information, and then converts the first data set into the first hash. By encrypting the value, a first encrypted data set is created.

When the first encrypted data set is created, the first transmission processing unit 124 transmits the first encrypted data set to the router device 100.

Hereinafter, the first encryption event generation unit 119, the serial number extraction unit 120, the operation code generation unit 121, the first hash value generation unit 122, the first encryption unit 123, and the first transmission. The operation of the processing unit 124 will be described in detail using an example.

First, let's assume that 'schedule rule information 1' is received from the administrator terminal 140 to the Internet access management service server 110.

Then, the first encryption event generator 119 may generate a first encryption event to encrypt and transmit 'profile information 1' and 'schedule rule information 1' to the router device 100.

In this way, when the first encryption event is generated by the first encryption event generator 119, the serial number extractor 120 can confirm the time when the first encryption event occurred. If the time when the first encryption event occurred is '3:30 PM on March 31, 2022', the serial number extractor 120 extracts the first encryption event from the serial number table shown in Table 1 above. '5429', which is the serial number corresponding to 'Time Zone 4 (12:00 PM - 4:00 PM)' where 'March 31, 2022, 3:30 PM', which is when the encryption event occurred, is the first serial number. It can be extracted with

Then, the operation code generator 121 bits the result of performing modulo-2 operation on each of the four numbers constituting '1230', which is the equipment identification number corresponding to the router equipment 100. By organizing it into columns, a 4-bit first operation code can be generated such as '1010', and when modulo-2 operation is performed on each of the four numbers that make up the first serial number '5429', By organizing the result value into a bit string, a 4-bit second operation code can be generated, such as '1001'.

Then, the first hash value generator 122 performs an exclusive OR operation between the first operation code '1010' and the second operation code '1001', thereby converting the 4-bit seed code into '0011'. can be created.

Then, the first hash value generator 122 may apply the seed code '0011' as an input to the first hash function to generate a first hash value such as '26d103c620a31345ag57qat327891703'.

In this way, when the first hash value is generated by the first hash value generator 122, the first encryption unit 123 generates 'data set 1' consisting of 'profile information 1' and 'schedule rule information 1'. After creating, 'Encrypted Data Set 1' can be created by encrypting 'Data Set 1' with the first hash value, '26d103c620a31345ag57qat327891703'.

In this way, when 'encrypted data set 1' is generated by the first encryption unit 123, the first transmission processing unit 124 can transmit 'encrypted data set 1' to the router device 100.

At this time, according to an embodiment of the present invention, the router device 100 pre-stores the device identification number, the first hash function, and the serial number table corresponding to the router device 100 in the memory, and the Internet When the first encrypted data set is received from the connection management service server 110, the first serial number corresponding to the first time zone at which the first encrypted data set was received is entered from the serial number table. After extraction, the result of performing modulo-2 operation on each of the t numbers constituting the equipment identification number corresponding to the router device 100 is configured as a bit string, so that the first operation code of t bits After generating the second operation code of t bits by configuring the result of performing modulo-2 operation on each of the t numbers constituting the first serial number into a bit string, By performing an exclusive OR operation between the first operation code and the second operation code, the seed code of t bits is generated, and the seed code is applied as an input to the first hash function to generate the first hash value. Afterwards, the first data set can be restored by decrypting the first encrypted data set with the first hash value.

Below, the operation of the router device 100 will be described in detail using an example.

First, as in the above-described example, t is set to '4', and in the memory of the router device 100, '1230', the device identification number corresponding to the router device 100, and the Internet access management service server 110 are stored in the dictionary. Let us assume that the shared first hash function and the serial number table as shown in Table 1 are pre-stored. In addition, as in the above-described example, as the first transmission processing unit 124 transmits 'encrypted data set 1' to the router device 100, from the Internet connection management service server 110 to the router device 100, Assume that 'encrypted data set 1' has been received.

Then, the router device 100 can check when 'encrypted data set 1' was received. Here, when the time when 'encrypted data set 1' is received is 'March 31, 2022, 3:31 PM', the router device 100 receives 'encrypted data set 1' from the serial number table as shown in Table 1 above. '5429', which is the serial number corresponding to 'Time Zone 4 (12:00 PM - 4:00 PM)' to which 'March 31, 2022, 3:31 PM', which is the point at which '1' was received, belongs to the first series. It can be extracted by number.

Then, the router device 100 converts the result of performing modulo-2 operation on each of the four numbers constituting '1230', which is the device identification number corresponding to the router device 100, into a bit string. By configuring, the 4-bit first operation code can be generated as '1010', and when modulo-2 operation is performed on each of the four numbers constituting the first serial number '5429', By configuring the result value as a bit string, the 4-bit second operation code can be generated, such as '1001'.

Afterwards, the router device 100 generates the 4-bit seed code as '0011' by performing an exclusive OR operation between the first operation code '1010' and the second operation code '1011'. You can.

Then, the router device 100 applies the seed code '0011' as an input to the first hash function to generate the first hash value such as '26d103c620a31345ag57qat327891703', and then generates 'encrypted data set 1'. ‘Data set 1’ can be restored by decrypting it with the first hash value, ‘26d103c620a31345ag57qat327891703’.

According to one embodiment of the present invention, the Internet access management service server 110 may further include an Internet blocking history information request unit 125 and an Internet blocking history information transmitting unit 126.

After the scheduling rule setting request command is transmitted to the router device 100 through the setting request command transmitting unit 115, the Internet blocking history information request unit 125 receives a preset first period from the administrator terminal 140. When a command to request provision of Internet blocking history information for the at least one management target terminal according to the first schedule rule information for the period is received, the first schedule rule information for the first period is sent to the router equipment 100. Request transmission of Internet blocking history information for the at least one management target terminal according to.

In response to a request to transmit the Internet blocking history information, the Internet blocking history information transmission unit 126 receives first Internet blocking history information from the router device 100 (the first Internet blocking history information includes the at least one management information). When information consisting of access blocking history information of the target terminal to the at least one site and access blocking history information according to Internet access blocking time) is received, the first Internet blocking history information is transmitted to the administrator terminal 140. do.

Hereinafter, the operations of the Internet blocking history information request unit 125 and the Internet blocking history information transmitting unit 126 will be described in detail using an example.

First, the preset first period is called '7 days', and after the scheduling rule setting request command is transmitted to the router device 100 through the setting request command transmission unit 115, the Internet A command is sent to the connection management service server 110 to request provision of Internet blocking history information for 'terminal 1, terminal 3, and terminal 5' according to 'schedule rule information 1' for a preset first period of '7 days'. Assume it has been received.

Then, the Internet blocking history information request unit 125 is the router device 100, and provides Internet blocking history information for 'terminal 1, terminal 3, and terminal 5' according to 'schedule rule information 1' for '7 days'. You can request transmission.

At this time, when it is said that 'Internet blocking history information 1' as shown in Table 2 below is received from the router device 100 as the first Internet blocking history information in response to the transmission request for the Internet blocking history information, Internet blocking is performed. The history information transmission unit 126 can transmit 'Internet blocking history information 1' as shown in Table 2 below to the administrator terminal 140.

At least one managed terminal	Access blocking history information for at least one site		Access blocking history information according to Internet access blocking time
Terminal 1	site 1	site 2	Daily, 10 PM - 7 AM
	2 cases	1 case	1 case (April 4, 2022, 10:30 PM)
Terminal 3	site 1	site 2	Daily, 10 PM - 7 AM
	0 cases	0 cases	0 cases
Terminal 5	site 1	site 2	Daily, 10 PM - 7 AM
	4 cases	3 cases	2 cases (April 1, 2022, 11:30 p.m.), (April 6, 2022, 2:45 a.m.)

At this time, according to one embodiment of the present invention, when the Internet blocking history information transmission unit 126 transmits the first Internet blocking history information to the administrator terminal 140, the first Internet blocking history information is exposed to others. In order to prevent this from happening, the first Internet blocking history information can be encrypted and transmitted to the administrator terminal 140.

In this regard, according to one embodiment of the present invention, the Internet blocking history information transmission unit 126 is a specific configuration for encrypting the first Internet blocking history information and transmitting it to the administrator terminal 140, and is a dummy data storage unit. (127), encryption key storage unit 128, second hash function storage unit 129, second encryption event generation unit 130, encryption operation data generation unit 131, second encryption unit 132, and 2 It may include a transmission processing unit 133.

The dummy data storage unit 127 includes preset first dummy data and preset second dummy data (the second dummy data is composed of a two-dimensional code including the second dummy data, router equipment ( 100) is stored on the surface.

For example, when the preset first dummy data is called 'D ₁ ' and the preset second dummy data is called 'D ₂ ', the dummy data storage unit 127 contains the first dummy data 'D ₁ ' and The second dummy data 'D ₂ ' may be stored.

The encryption key storage unit 128 stores a preset encryption key for homomorphic encryption (the encryption key is also pre-stored in the administrator terminal 140).

Here, homomorphic encryption refers to an encryption technology that supports performing operations on data in an encrypted state without decrypting the encrypted data. In other words, homomorphic encryption refers to an encryption technique that ensures that the encrypted value of the result of calculating two plaintext data is the same as the result of calculating the two data in the encrypted state.

For example, let's assume that there are plaintext data called A and B, the encrypted data created by encrypting A is E(A), and the encrypted data created by encrypting B is E(B). At this time, if the value of performing a predetermined operation on A and B is encrypted to calculate a value called E(S), the result of performing the isomorphic operation between E(A) and E(B) is E( The basic concept of homomorphic encryption is to make it the same as S). In other words, when a predetermined operation is performed on two plaintext data in the plaintext domain and the calculated value is encrypted, encryption that ensures that the encryption value matches the value obtained by calculating the two encrypted data in the encryption domain is called homomorphic encryption.

The second hash function storage unit 129 stores a preset second hash function that is pre-shared with the administrator terminal 140.

When the first Internet blocking history information is received from the router device 100 in response to a transmission request for the Internet blocking history information, the second encryption event generator 130 sends the first Internet blocking history information to the administrator terminal 140. A second encryption event is generated to encrypt and transmit Internet blocking history information.

When the second encryption event occurs, the encryption operation data generator 131 performs an operation between the first dummy data and the second dummy data according to a preset first operation equation to calculate the operation data. , By encrypting the calculation data with the encryption key, encrypted calculation data is generated.

The second encryption unit 132 applies the encryption operation data as an input to the second hash function, generates a second hash value, and then encrypts the first Internet blocking history information with the second hash value, First encrypted Internet blocking history information is generated, and the first encrypted dummy data is encrypted with the encryption key, thereby generating first encrypted dummy data.

When the first encrypted Internet blocking history information and the first encrypted dummy data are generated, the second transmission processing unit 133 sends the first encrypted Internet blocking history information and the first encrypted dummy data to the manager terminal 140. send.

At this time, the administrator terminal 140 pre-stores the encryption key and the second hash function in the memory, and receives the first encryption Internet blocking history information and the first encryption dummy from the Internet access management service server 110. When data is received, a scan instruction message containing an instruction to scan the two-dimensional code printed on the surface of the router device 100 is displayed on the screen, and the administrator then installs the scan instruction message on the administrator terminal 140. When the second dummy data is extracted from the two-dimensional code by scanning and recognizing the two-dimensional code printed on the surface of the router equipment 100 through the camera, the second dummy data is encrypted. By encrypting with a key, second encryption dummy data is generated, and by performing an operation between the first encryption dummy data and the second encryption dummy data according to a preset homomorphism operation equation corresponding to the first operation equation, a homomorphic operation is performed. After calculating the data, the homomorphic operation data is applied as an input to the second hash function to generate the second hash value, and the first encrypted Internet blocking history information is decrypted with the second hash value. 1 Internet blocking history information can be restored.

Here, the homomorphic operation formula is an equation for performing an operation between two data on which homomorphic encryption has been performed, and may be preset by the developer. This homomorphic operation expression refers to an operation expression designated to generate a result in the encryption domain corresponding to a predetermined operation expression performed between two plaintext data in the plaintext domain. For example, when there is an operation called multiplication that multiplies plain text data, there may be a homomorphic multiplication corresponding to the multiplication. In this regard, it is said that plaintext data A and B exist, A and B are each homomorphically encrypted, and encrypted data called E(A) and E(B) are generated, and the above homomorphic operation formula is applied to multiplication in the plaintext domain. In the case of corresponding homomorphic multiplication, if E(A) and E(B) are homomorphically multiplied in the encryption domain, '

' can be generated, and when A and B are multiplied in the plaintext domain, '

'The operation result may be generated. At this time, '

The result of encrypting ' is '

' becomes the same. When this relationship is established, it can be said that the homomorphic multiplication, which is the homomorphic operation expression, has a relationship corresponding to multiplication in the plaintext domain. Here, homomorphic multiplication is not an operation that simply multiplies two encrypted data, like multiplication in the plaintext domain. Since homomorphic multiplication is a homomorphic operation to produce a result corresponding to multiplication in the plaintext domain, the operation process is not simply performed by multiplying two encrypted data, but is performed by multiplication, addition, division, and module depending on the characteristics of homomorphic encryption. It can be defined as a predetermined operation algorithm that performs complex calculations.

Hereinafter, the operations of the second encryption event generation unit 130, the encryption operation data generation unit 131, the second encryption unit 132, the second transmission processing unit 133, and the administrator terminal 140 are described as examples. Let me explain in detail.

First, the preset first calculation formula is 'multiplication', and in response to a transmission request for the Internet blocking history information, the router equipment 100 sends the first Internet blocking history information to the 'Internet blocking' as shown in Table 2. Assume that history information 1' is received.

Then, the second encryption event generator 130 can generate a second encryption event to encrypt and transmit 'Internet blocking history information 1' as shown in Table 2 to the administrator terminal 140.

In this way, when the second encryption event is generated by the second encryption event generation unit 130, the encryption operation data generation unit 131 generates the first dummy data 'D' according to the first operation expression 'multiplication'. By performing an operation between _'1 ' and the second dummy data 'D ₂ ', the operation data is '

It can be calculated as follows.

Then, the encryption operation data generator 131 generates the operation data '

By encrypting ' with the encryption key, the encryption operation data is '

It can be created like this:

Then, the second encryption unit 132 uses the encryption operation data '

' can be applied as an input to the second hash function, thereby generating a second hash value such as '51c241d478q2269nm14wrt14211020kz'.

Afterwards, the second encryption unit 132 encrypts 'Internet blocking history information 1' as shown in Table 2 with the second hash value '51c241d478q2269nm14wrt14211020kz', thereby generating 'encrypted Internet blocking history information 1', By encrypting the first dummy data 'D ₁ ' with the encryption key, first encrypted dummy data can be generated as 'E(D ₁ )'.

Then, the second transmission processing unit 133 can transmit 'encrypted Internet blocking history information 1' and 'E(D ₁ )', which is the first encrypted dummy data, to the administrator terminal 140.

At this time, the isomorphic operation expression corresponding to the first operation expression 'multiplication' is '

It is said to be 'homomorphic multiplication' expressed as ', and the encryption key and the second hash function are pre-stored on the memory of the administrator terminal 140, and the second dummy data is on the surface of the router device 100. Let us assume that the two-dimensional code in which 'D ₂ ' is inserted is pre-printed.

In this situation, as in the above-described example, the second transmission processing unit 133 transmits ‘encrypted Internet blocking history information 1’ and ‘E(D ₁ )’, which is the first encrypted dummy data, to the administrator terminal 140. Accordingly, let us assume that 'encrypted Internet blocking history information 1' and 'E(D ₁ )', which is the first encrypted dummy data, are received from the Internet access management service server 110 to the administrator terminal 140.

Then, the manager terminal 140 may display a scan instruction message on the screen that includes instructions to scan the two-dimensional code printed on the surface of the router device 100.

At this time, the manager who has confirmed the scan instruction message scans and recognizes the two-dimensional code printed on the surface of the router device 100 through a camera mounted on the manager terminal 140, thereby recognizing the two-dimensional code. Let us assume that the second dummy data 'D ₂ ' is extracted from .

Then, the manager terminal 140 can generate second encrypted dummy data as 'E(D ₂ )' by encrypting the second dummy data 'D ₂ ' with the encryption key.

Then, the manager terminal 140 generates the first encryption dummy data 'E(D ₁ )' and the second encryption dummy according to the homomorphic operation expression 'homomorphic multiplication' corresponding to the first operation expression 'multiplication'. By performing an operation between the data 'E(D ₂ )', the isomorphic operation data is '

It can be calculated as follows.

At this time, according to the above-described example, the second hash value '51c241d478q2269nm14wrt14211020kz' is the encryption operation data '51c241d478q2269nm14wrt14211020kz'.

' is a hash value generated by being applied as an input to the second hash function, and ' is the homomorphic operation data.

' is the encryption operation data, '

Since it is the same data as ', the manager terminal 140 uses the isomorphic operation data '

' can be applied as an input to the second hash function, thereby generating the second hash value '51c241d478q2269nm14wrt14211020kz'.

In addition, 'encrypted Internet blocking history information 1' is information generated by encrypting 'Internet blocking history information 1' as shown in Table 2 above with the second hash value '51c241d478q2269nm14wrt14211020kz', so the administrator terminal 140 is configured to 'encrypted Internet blocking history information 1'. By decrypting 'history information 1' with the second hash value '51c241d478q2269nm14wrt14211020kz', 'Internet blocking history information 1' as shown in Table 2 above can be restored.

According to one embodiment of the present invention, the Internet access management service server 110 may further include a URL address confirmation unit 134, a crawling unit 135, a comparison unit 136, and a warning message transmission unit 137. there is.

After the scheduling rule setting request command is transmitted to the router device 100 through the setting request command transmission unit 115, the URL address confirmation unit 134 configures the router device 100 at a preset first cycle interval. Receive access history information about the site accessed by the at least one management target terminal, and based on the received connection history information, the first site to which the at least one management target terminal accessed the most during the first period. Check the site URL address.

When the URL address of the first site is confirmed, the crawling unit 135 accesses the web page according to the URL address of the first site and then crawls the text posted on the accessed web page.

When the text posted on the web page is crawled, the comparison unit 136 counts the number of times a character string matching a plurality of preset harmful words appears among the crawled text, and then sets the number of times the number of times the character string matches the preset standard. Compare the number of times.

When it is determined that the counted number of times exceeds the reference number, the warning message transmission unit 137 transmits the URL address of the first site to the manager terminal 140, while at least one management target terminal is A warning message is sent notifying that you are accessing the URL address of a harmful site.

Here, a harmful site refers to a site that contains information that is deemed necessary for review, such as security-threatening activities, gambling, pornography, illegal drug sales, etc.

Hereinafter, the operations of the URL address confirmation unit 134, the crawling unit 135, the comparison unit 136, and the warning message transmission unit 137 will be described in detail using examples.

First, let us assume that the preset first period is '6 hours' and that the scheduling rule setting request command is transmitted to the router device 100 through the setting request command transmission unit 115.

Then, the URL address confirmation unit 134 receives access history information about the sites accessed by 'Terminal 1, Terminal 3, and Terminal 5' from the router device 100 at '6 hour' intervals, which is the first preset period. You can receive it.

Here, assuming that the received connection history information is as shown in Table 3 below, the URL address confirmation unit 134 connects 'Terminal 1, Terminal 3' for '6 hours' based on the connection history information as shown in Table 3 below. , you can check 'URL address 3', which is the URL address of 'Site 3', the first site most accessed by 'Terminal 5'.

At least one managed terminal	Access history information for accessed sites
Terminal 1	site 3	URL address 3	March 31, 2022 4:01 PM
	site 4	URL address 4	March 31, 2022 4:05 PM
Terminal 3	site 3	URL address 3	March 31, 2022 5:05 PM
	site 3	URL address 3	March 31, 2022 5:07 PM
	site 5	URL address 5	March 31, 2022 6:10 PM
	site 6	URL address 6	March 31, 2022 6:15 PM
Terminal 5	site 8	URL address 8	March 31, 2022 4:45 PM
	site 7	URL address 7	March 31, 2022 4:50 PM
	site 3	URL address 3	March 31, 2022 7:20 PM

In this way, when the URL address of the first site is confirmed by the URL address confirmation unit 134, the crawling unit 135 accesses the web page according to 'URL address 3', which is the URL address of 'Site 3', Text posted on the connected web page can be crawled.

Then, the comparison unit 136 may count the number of times a string matching a plurality of preset harmful words appears among the crawled text.

Here, if it is assumed that the plurality of harmful words are 'harmful word 1, harmful word 2, harmful word 3, ..., harmful word 20', the comparison unit 136 selects 'harmful word 1, harmful word 2' from the crawled text. After counting the number of occurrences of a string matching word 2, harmful word 3, ..., harmful word 20, the counted number of times can be compared with a preset standard number.

If the counted number of times is '7 times' and the standard number of times is '5 times', the warning message transmission unit 137 determines that the counted number of times '7 times' is the standard number of '5 times'. By determining that it exceeds the number of times, 'URL Address 3', which is the URL address of 'Site 3', is transmitted to the administrator terminal 140, and 'Terminal 1, Terminal 3, and Terminal 5' are linked to the URL address of the harmful site. You can send a warning message notifying that you are connected.

Figure 2 is a flowchart showing the operation method of an Internet access management service server capable of providing an Internet access management service based on terminal grouping according to an embodiment of the present invention.

In step S210, when a command to request transmission of terminal list information for performing Internet access management settings of a pre-designated router device is received from the administrator terminal, the router device transmits information about terminals currently connected to the router device. Request transmission of unique terminal identification information.

In step S220, in response to a transmission request for the terminal unique identification information, when the terminal unique identification information of the plurality of first terminals is received from the router equipment, the terminal unique identification information of the plurality of first terminals is sent to the manager terminal. Send identification information.

In step S230, after the terminal unique identification information of the plurality of first terminals is transmitted to the manager terminal, the terminal unique identification of at least one management target terminal selected from the plurality of first terminals is received from the manager terminal. When the information is received and a command to request the creation of a profile for designating a management group is received, first profile information consisting of terminal unique identification information of the at least one management target terminal is generated.

In step S240, when the first profile information is created, the administrator terminal is requested to set a scheduling rule for Internet access management.

In step S250, when first schedule rule information (the first schedule rule information is information consisting of the URL address of at least one site subject to access blocking and Internet access blocking time information) is received from the manager terminal. , while transmitting the first profile information and the first schedule rule information to the router equipment, the at least one management target terminal included in the first profile information is configured to transmit the at least one management target terminal according to the first schedule rule information. In addition to preventing access to the URL address of one site, a scheduling rule setting request command is sent requesting that a scheduling rule be set to prevent access to the Internet during Internet access blocking times.

At this time, according to an embodiment of the present invention, in step S250, a device identification number of t (t is a natural number of 2 or more) digits previously issued to the router device (the device identification number corresponding to the router device is, maintaining a device identification number storage in which (pre-stored in the router device) is stored; maintaining a first hash function storage in which a preset first hash function, which is pre-shared with the router device, is stored; , storing and maintaining a serial number table in which different t-digit serial numbers corresponding to each of a plurality of preset time zones, which are pre-shared with the router device, are recorded, from the manager terminal, the first schedule rule. When information is received, generating a first encryption event to encrypt and transmit the first profile information and the first schedule rule information to the router device; when the first encryption event occurs, the serial number table extracting a first serial number corresponding to a first time zone at which the first encryption event occurred, and when the first serial number is extracted, t constituting a device identification number corresponding to the router device A first operation code of t bits is generated by configuring the result value of performing the modulo-2 operation on each of the numbers into a bit string, and for each of the t numbers constituting the first serial number. Generating a second operation code of t bits by configuring the result value when performing the modulo-2 operation into a bit string, performing an exclusive OR operation between the first operation code and the second operation code, t After generating a seed code of a bit, applying the seed code as an input to the first hash function to generate a first hash value. When the first hash value is generated, the first profile information and the first After generating a first data set consisting of schedule rule information, generating a first encrypted data set by encrypting the first data set with the first hash value, and once the first encrypted data set is generated, It may include transmitting the first encrypted data set to a router device.

At this time, the router device pre-stores the device identification number corresponding to the router device, the first hash function, and the serial number table in the memory, and the first encrypted data set is received from the Internet access management service server. When received, the first serial number corresponding to the first time zone at which the first encrypted data set is received is extracted from the serial number table, and then t configures a device identification number corresponding to the router device. The first operation code of t bits is generated by configuring the result value of performing the modulo-2 operation on each of the numbers into a bit string, and each of the t numbers constituting the first serial number is generated. After generating the second operation code of t bits by configuring the result value of performing the modulo-2 operation into a bit string, by performing an exclusive OR operation between the first operation code and the second operation code , generating the seed code of t bits, applying the seed code as an input to the first hash function to generate the first hash value, and then decrypting the first encrypted data set with the first hash value. , the first data set can be restored.

In addition, according to one embodiment of the present invention, the method of operating the Internet access management service server includes, after the scheduling rule setting request command is transmitted to the router equipment, the first time period for a preset first period from the manager terminal. 1 When a command to request provision of Internet blocking history information for the at least one management target terminal according to the schedule rule information is received, the router equipment, the at least one according to the first schedule rule information for the first period In response to the request for transmission of Internet blocking history information and the step of requesting transmission of Internet blocking history information for the management target terminal, first Internet blocking history information (the first Internet blocking history information is, When information consisting of access blocking history information of at least one management target terminal to the at least one site and access blocking history information according to Internet access blocking time) is received, the first Internet blocking history information is sent to the manager terminal. It may further include the step of transmitting.

At this time, according to one embodiment of the present invention, the step of transmitting the first Internet blocking history information includes preset first dummy data and preset second dummy data (the second dummy data includes the second dummy data). Maintaining a dummy data storage unit in which a two-dimensional code is stored, which is pre-printed on the surface of the router equipment, and a preset encryption key for homomorphic encryption (the encryption key is stored in the manager terminal). Maintaining an encryption key storage unit in which (also pre-stored) is stored, maintaining a second hash function storage unit in which a preset second hash function, which is pre-shared with the manager terminal, is stored, blocking the Internet In response to a request for transmission of history information, when the first Internet blocking history information is received from the router equipment, a second encryption event is generated to encrypt and transmit the first Internet blocking history information to the administrator terminal. Step, when the second encryption event occurs, an operation is performed between the first dummy data and the second dummy data according to a preset first operation equation to calculate operation data, and then the operation data is encrypted. Generating encryption operation data by encrypting with a key, applying the encryption operation data as input to the second hash function to generate a second hash value, and then converting the first Internet blocking history information to the second hash value. generating first encrypted Internet blocking history information by encrypting the first encrypted Internet blocking history information; and generating first encrypted dummy data by encrypting the first dummy data with the encryption key; and generating the first encrypted Internet blocking history information and the first encrypted Internet blocking history information. When dummy data is generated, it may include transmitting the first encrypted Internet blocking history information and the first encrypted dummy data to the manager terminal.

At this time, the manager terminal pre-stores the encryption key and the second hash function in the memory, and when the first encryption Internet blocking history information and the first encryption dummy data are received from the Internet access management service server, , After displaying a scan instruction message on the screen containing instructions to scan the two-dimensional code printed on the surface of the router device, the manager scans the router device through a camera mounted on the manager terminal. As the two-dimensional code printed on the surface of is scanned and recognized, when the second dummy data is extracted from the two-dimensional code, the second dummy data is encrypted with the encryption key, thereby creating the second encrypted dummy data. After generating and calculating homomorphic operation data by performing an operation between the first encryption dummy data and the second encryption dummy data according to a preset homomorphism operation equation corresponding to the first operation equation, the homomorphism operation data is applied as an input to the second hash function to generate the second hash value, and by decrypting the first encrypted Internet blocking history information with the second hash value, the first Internet blocking history information can be restored. .

In addition, according to an embodiment of the present invention, the method of operating the Internet access management service server includes, after the scheduling rule setting request command is transmitted to the router device, at a preset first cycle interval, from the router device, Receive access history information about the site accessed by the at least one management target terminal, and based on the received access history information, select the first site most accessed by the at least one management target terminal during the first period. Confirming the URL address, once the URL address of the first site is confirmed, accessing a web page according to the URL address of the first site, and then crawling the text posted on the accessed web page, When text posted on a web page is crawled, counting the number of times a string matching a plurality of preset harmful words appears among the crawled text, then comparing the counted number with a preset reference number; When it is determined that the counted number of times exceeds the reference number, the URL address of the first site is transmitted to the manager terminal, and the at least one management target terminal is connected to the URL address of a harmful site. The step of transmitting a notification warning message may be further included.

Above, the operation method of the Internet access management service server according to an embodiment of the present invention has been described with reference to FIG. 2. Here, the operation method of the Internet connection management service server according to an embodiment of the present invention may correspond to the configuration of the operation of the Internet connection management service server 110 described using FIG. 1, so a more detailed description thereof is given in FIG. Decided to omit it.

The operating method of an Internet access management service server capable of providing an Internet access management service based on terminal grouping according to an embodiment of the present invention can be implemented as a computer program stored in a storage medium for execution through combination with a computer. .

In addition, the operating method of an Internet access management service server capable of providing an Internet access management service based on terminal grouping according to an embodiment of the present invention is implemented in the form of program instructions that can be executed through various computer means and is computer readable. Can be recorded on media. The computer-readable medium may include program instructions, data files, data structures, etc., singly or in combination. Program instructions recorded on the medium may be specially designed and constructed for the present invention or may be known and usable by those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic media such as floptical disks. -Includes optical media (magneto-optical media) and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, etc. Examples of program instructions include machine language code, such as that produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter, etc.

As described above, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but this is only provided to facilitate a more general understanding of the present invention, and the present invention is not limited to the above embodiments. , those skilled in the art can make various modifications and variations from this description.

Accordingly, the spirit of the present invention should not be limited to the described embodiments, and the scope of the patent claims described below as well as all modifications that are equivalent or equivalent to the scope of this patent claim shall fall within the scope of the spirit of the present invention. .

Claims (12)

1. In the Internet access management service server capable of providing an Internet access management service based on terminal grouping,

   When a command to request transmission of terminal list information for performing Internet access management settings of a pre-designated router device is received from the administrator terminal, a terminal-specific information is sent to the router device for the terminals currently connected to the router device. A terminal unique identification information request unit that requests transmission of identification information;

   In response to a request to transmit the terminal unique identification information, when the terminal unique identification information of the plurality of first terminals is received from the router equipment, the terminal unique identification information of the plurality of first terminals is transmitted to the manager terminal. A terminal unique identification information transmission unit;

   After the terminal unique identification information of the plurality of first terminals is transmitted to the manager terminal, terminal unique identification information of at least one management target terminal selected from the plurality of first terminals is received from the manager terminal, a profile information generator that generates first profile information consisting of unique terminal identification information of the at least one management target terminal when a command to request the creation of a profile for designating a management group is received;

   When the first profile information is created, a scheduling rule setting request unit that requests the administrator terminal to set a scheduling rule for Internet access management; and

   When first schedule rule information - the first schedule rule information is information consisting of a URL (Uniform Resource Locator) address of at least one site subject to access blocking and Internet access blocking time information - is received from the administrator terminal. , while transmitting the first profile information and the first schedule rule information to the router equipment, the at least one management target terminal included in the first profile information is configured to transmit the at least one management target terminal according to the first schedule rule information. A setting request command transmission unit that transmits a scheduling rule setting request command requesting to set up a scheduling rule that prevents access to the URL address of one site and prevents access to the Internet during Internet access block times.

   An Internet access management service server including.
2. According to paragraph 1,

   The setting request command transmission unit

   A device identification number of t (t is a natural number of 2 or more) digits pre-issued for the router device - the device identification number corresponding to the router device is also pre-stored in the router device - a device identification number stored therein. storage unit;

   a first hash function storage unit that stores a preset first hash function that is pre-shared with the router device;

   a serial number table maintenance unit that stores and maintains a serial number table in which different t-digit serial numbers corresponding to each of a plurality of preset time zones, which are pre-shared with the router equipment, are recorded;

   When the first schedule rule information is received from the manager terminal, a first encryption event is generated to generate a first encryption event for encrypting and transmitting the first profile information and the first schedule rule information to the router device. wealth;

   When the first encryption event occurs, a serial number extractor that extracts a first serial number corresponding to a first time zone at which the first encryption event occurred from the serial number table;

   When the first serial number is extracted, the result value of performing a modulo-2 operation on each of the t numbers constituting the device identification number corresponding to the router device is configured as a bit string. By doing so, a first operation code of t bits is generated, and the result of performing modulo-2 operation on each of the t numbers constituting the first serial number is configured as a bit string, thereby generating a second operation code of t bits. An operation code generation unit that generates an operation code;

   By performing an exclusive OR (XOR) operation between the first operation code and the second operation code, a t-bit seed code is generated, and then the seed code is applied as an input to the first hash function to generate a A first hash value generator that generates 1 hash value;

   When the first hash value is generated, a first data set consisting of the first profile information and the first schedule rule information is created, and then the first data set is encrypted with the first hash value, thereby performing first encryption. A first encryption unit that generates a data set; and

   When the first encrypted data set is created, a first transmission processing unit that transmits the first encrypted data set to the router equipment

   Including,

   The router equipment is

   The device identification number corresponding to the router device, the first hash function, and the serial number table are pre-stored in memory, and when the first encrypted data set is received from the Internet access management service server, the serial number From the table, the first serial number corresponding to the first time zone at which the first encrypted data set is received is extracted, and then for each of the t numbers constituting the device identification number corresponding to the router device. The first operation code of t bits is generated by configuring the result value when performing the modulo-2 operation into a bit string, and the modulo-2 operation is performed on each of the t numbers constituting the first serial number. After generating the second operation code of t bits by configuring the result value when performing the operation into a bit string, the seed of t bits is performed by performing an exclusive OR operation between the first operation code and the second operation code. Generate a code, apply the seed code as an input to the first hash function to generate the first hash value, and then decrypt the first encrypted data set with the first hash value, thereby generating the first data set. An Internet access management service server characterized by restoring.
3. According to paragraph 1,

   After the scheduling rule setting request command is transmitted to the router device through the setting request command transmission unit, the at least one management target terminal according to the first schedule rule information for a preset first period from the manager terminal. When a request command for providing Internet blocking history information is received, requesting the router equipment to transmit Internet blocking history information for the at least one management target terminal according to the first schedule rule information for the first period. Internet blocking history information request unit; and

   In response to a request to transmit the Internet blocking history information, the router equipment receives first Internet blocking history information - the first Internet blocking history information blocks access of the at least one management target terminal to the at least one site. This is information consisting of history information and access blocking history information according to Internet access blocking time. When - is received, the Internet blocking history information transmission unit transmits the first Internet blocking history information to the administrator terminal.

   An Internet access management service server further comprising:
4. According to paragraph 3,

   The Internet blocking history information transmission unit

   Preset first dummy data and preset second dummy data - the second dummy data is composed of a two-dimensional code including the second dummy data and is preprinted on the surface of the router equipment. - A dummy data storage unit where is stored;

   An encryption key storage unit storing a preset encryption key for homomorphic encryption - the encryption key is also pre-stored in the administrator terminal;

   a second hash function storage unit that stores a preset second hash function that is pre-shared with the administrator terminal;

   In response to a transmission request for the Internet blocking history information, when the first Internet blocking history information is received from the router equipment, a second encryption event for encrypting and transmitting the first Internet blocking history information to the administrator terminal. a second encryption event generator that generates;

   When the second encryption event occurs, an operation is performed between the first dummy data and the second dummy data according to a preset first operation formula to calculate operation data, and then the operation data is encrypted with the encryption key. By doing so, an encryption operation data generation unit that generates encryption operation data;

   By applying the encryption operation data as an input to the second hash function to generate a second hash value, and then encrypting the first Internet blocking history information with the second hash value, the first encrypted Internet blocking history information is generated. a second encryption unit generating first encrypted dummy data by encrypting the first dummy data with the encryption key; and

   When the first encrypted Internet blocking history information and the first encrypted dummy data are generated, a second transmission processing unit transmits the first encrypted Internet blocking history information and the first encrypted dummy data to the manager terminal.

   Including,

   The manager terminal is

   The encryption key and the second hash function are pre-stored in the memory, and when the first encryption Internet blocking history information and the first encryption dummy data are received from the Internet access management service server, the surface of the router equipment After displaying a scan instruction message containing instructions to scan the two-dimensional code printed on the screen, the administrator scans the code printed on the surface of the router device through a camera mounted on the administrator terminal. As the two-dimensional code is scanned and recognized, when the second dummy data is extracted from the two-dimensional code, the second dummy data is encrypted with the encryption key to generate second encrypted dummy data, and the first After calculating homomorphic operation data by performing an operation between the first encryption dummy data and the second encryption dummy data according to a preset homomorphism operation equation corresponding to the operation equation, the homomorphism operation data is applied to the second hash function. An Internet access management service characterized by generating the second hash value by applying it as an input to and restoring the first Internet blocking history information by decrypting the first encrypted Internet blocking history information with the second hash value. server.
5. According to paragraph 1,

   After the scheduling rule setting request command is transmitted to the router device through the configuration request command transmission unit, at preset first cycle intervals, the site to which the at least one management target terminal is connected is sent from the router device. a URL address confirmation unit that receives access history information and, based on the received access history information, verifies the URL address of a first site most frequently accessed by the at least one management target terminal during the first period;

   a crawling unit that, when the URL address of the first site is confirmed, accesses a web page according to the URL address of the first site and then crawls text posted on the accessed web page;

   When the text posted on the web page is crawled, the number of times a string matching a plurality of preset harmful words appears among the crawled text is counted, and then the counted number is compared with the preset reference number. wealth; and

   When it is determined that the counted number of times exceeds the reference number, the URL address of the first site is transmitted to the manager terminal, and the at least one management target terminal is connected to the URL address of a harmful site. Warning message transmission unit that transmits warning messages

   An Internet access management service server further comprising:
6. In a method of operating an Internet access management service server capable of providing an Internet access management service based on terminal grouping,

   When a command to request transmission of terminal list information for performing Internet access management settings of a pre-designated router device is received from the administrator terminal, a terminal-specific information is sent to the router device for the terminals currently connected to the router device. requesting transmission of identification information;

   In response to a request to transmit the terminal unique identification information, when the terminal unique identification information of the plurality of first terminals is received from the router equipment, the terminal unique identification information of the plurality of first terminals is transmitted to the manager terminal. step;

   After the terminal unique identification information of the plurality of first terminals is transmitted to the manager terminal, terminal unique identification information of at least one management target terminal selected from the plurality of first terminals is received from the manager terminal, When a request command for creating a profile for designating a management group is received, generating first profile information consisting of unique terminal identification information of the at least one management target terminal;

   When the first profile information is generated, requesting the administrator terminal to set a scheduling rule for Internet access management; and

   When first schedule rule information - the first schedule rule information is information consisting of a URL (Uniform Resource Locator) address of at least one site subject to access blocking and Internet access blocking time information - is received from the administrator terminal. , while transmitting the first profile information and the first schedule rule information to the router equipment, the at least one management target terminal included in the first profile information is configured to transmit the at least one management target terminal according to the first schedule rule information. A step of transmitting a scheduling rule setting request command requesting to set a scheduling rule to prevent access to the URL address of one site and to prevent access to the Internet during Internet access blocking times.

   A method of operating an Internet access management service server including.
7. According to clause 6,

   The step of transmitting the scheduling rule setting request command is

   A device identification number of t (t is a natural number of 2 or more) digits pre-issued for the router device - the device identification number corresponding to the router device is also pre-stored in the router device - a device identification number stored therein. maintaining a storage unit;

   maintaining a first hash function storage in which a preset first hash function, which is pre-shared with the router device, is stored;

   storing and maintaining a serial number table in which different t-digit serial numbers corresponding to each of a plurality of preset time zones are recorded, which is pre-shared with the router device;

   When the first schedule rule information is received from the manager terminal, generating a first encryption event to encrypt and transmit the first profile information and the first schedule rule information to the router device;

   When the first encryption event occurs, extracting a first serial number corresponding to a first time zone at which the first encryption event occurs from the serial number table;

   When the first serial number is extracted, the result value of performing a modulo-2 operation on each of the t numbers constituting the device identification number corresponding to the router device is configured as a bit string. By doing so, a first operation code of t bits is generated, and the result of performing modulo-2 operation on each of the t numbers constituting the first serial number is configured as a bit string, thereby generating a second operation code of t bits. generating operation codes;

   By performing an exclusive OR (XOR) operation between the first operation code and the second operation code, a t-bit seed code is generated, and then the seed code is applied as an input to the first hash function to generate a 1 generating a hash value;

   When the first hash value is generated, a first data set consisting of the first profile information and the first schedule rule information is created, and then the first data set is encrypted with the first hash value, thereby performing first encryption. Creating a data set; and

   When the first encrypted data set is generated, transmitting the first encrypted data set to the router device.

   Including,

   The router equipment is

   The device identification number corresponding to the router device, the first hash function, and the serial number table are pre-stored in memory, and when the first encrypted data set is received from the Internet access management service server, the serial number From the table, the first serial number corresponding to the first time zone at which the first encrypted data set is received is extracted, and then for each of the t numbers constituting the device identification number corresponding to the router device. The first operation code of t bits is generated by configuring the result value when performing the modulo-2 operation into a bit string, and the modulo-2 operation is performed on each of the t numbers constituting the first serial number. After generating the second operation code of t bits by configuring the result value when performing the operation into a bit string, the seed of t bits is performed by performing an exclusive OR operation between the first operation code and the second operation code. Generate a code, apply the seed code as an input to the first hash function to generate the first hash value, and then decrypt the first encrypted data set with the first hash value, thereby generating the first data set. A method of operating an Internet access management service server, characterized in that restoring.
8. According to clause 6,

   After the scheduling rule setting request command is transmitted to the router device, provision of Internet blocking history information for the at least one management target terminal according to the first schedule rule information for a preset first period from the manager terminal. When a request command is received, requesting, from the router equipment, transmission of Internet blocking history information for the at least one management target terminal according to the first schedule rule information for the first period; and

   In response to a request to transmit the Internet blocking history information, the router equipment receives first Internet blocking history information - the first Internet blocking history information blocks access of the at least one management target terminal to the at least one site. Information consisting of history information and access blocking history information according to Internet access blocking time - When received, transmitting the first Internet blocking history information to the administrator terminal.

   A method of operating an Internet access management service server further comprising:
9. According to clause 8,

   The step of transmitting the first Internet blocking history information is

   Preset first dummy data and preset second dummy data - the second dummy data is composed of a two-dimensional code including the second dummy data and is preprinted on the surface of the router equipment. - maintaining a dummy data storage unit in which is stored;

   Maintaining an encryption key storage unit storing a preset encryption key for homomorphic encryption - the encryption key is also pre-stored in the administrator terminal;

   maintaining a second hash function storage unit in which a preset second hash function, which is pre-shared with the manager terminal, is stored;

   In response to a transmission request for the Internet blocking history information, when the first Internet blocking history information is received from the router equipment, a second encryption event for encrypting and transmitting the first Internet blocking history information to the administrator terminal. generating a;

   When the second encryption event occurs, an operation is performed between the first dummy data and the second dummy data according to a preset first operation formula to calculate operation data, and then the operation data is encrypted with the encryption key. thereby generating encryption operation data;

   By applying the encryption operation data as an input to the second hash function to generate a second hash value, and then encrypting the first Internet blocking history information with the second hash value, the first encrypted Internet blocking history information is generated. generating first encrypted dummy data by encrypting the first dummy data with the encryption key; and

   When the first encrypted Internet blocking history information and the first encrypted dummy data are generated, transmitting the first encrypted Internet blocking history information and the first encrypted dummy data to the manager terminal.

   Including,

   The manager terminal is

   The encryption key and the second hash function are pre-stored in the memory, and when the first encryption Internet blocking history information and the first encryption dummy data are received from the Internet access management service server, the surface of the router equipment After displaying a scan instruction message containing instructions to scan the two-dimensional code printed on the screen, the administrator scans the code printed on the surface of the router device through a camera mounted on the administrator terminal. As the two-dimensional code is scanned and recognized, when the second dummy data is extracted from the two-dimensional code, the second dummy data is encrypted with the encryption key to generate second encrypted dummy data, and the first After calculating homomorphic operation data by performing an operation between the first encryption dummy data and the second encryption dummy data according to a preset homomorphism operation equation corresponding to the operation equation, the homomorphism operation data is applied to the second hash function. An Internet access management service characterized by generating the second hash value by applying it as an input to and restoring the first Internet blocking history information by decrypting the first encrypted Internet blocking history information with the second hash value. How the server operates.
10. According to clause 6,

    After the scheduling rule setting request command is transmitted to the router device, at preset first cycle intervals, connection history information about a site accessed by the at least one management target terminal is received from the router device, and received. Based on the access history information, confirming the URL address of the first site most frequently accessed by the at least one management target terminal during the first period;

    When the URL address of the first site is confirmed, accessing a web page according to the URL address of the first site and then crawling text posted on the accessed web page;

    When the text posted on the web page is crawled, counting the number of times a string matching a plurality of preset harmful words appears among the crawled text, and then comparing the counted number with a preset reference number. ; and

    When it is determined that the counted number of times exceeds the reference number, the URL address of the first site is transmitted to the manager terminal, and the at least one management target terminal is connected to the URL address of a harmful site. Steps to send a notification alert message

    A method of operating an Internet access management service server further comprising:
11. A computer-readable recording medium recording a computer program for executing the method of any one of claims 6 to 10 through combination with a computer.
12. A computer program stored in a storage medium for executing the method of any one of claims 6 to 10 through combination with a computer.

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